For our forefathers did not only appoint the best of these priests, and those that attended upon the Divine worship, for that design from the beginning, but made provision that the stock of the priests should continue unmixed and pure; for he who is partaker of the priesthood must propagate of a wife of the same nation, without having any regard to money, or any other dignities; but he is to make a scrutiny, and take his wife's genealogy from the ancient tables, and procure many witnesses to it. (7) And this is our practice not only in Judea, but wheresoever any body of men of our nation do live; and even there an exact catalogue of our priests' marriages is kept; I mean at Egypt and at Babylon, or in any other place of the rest of the habitable earth, whithersoever our priests are scattered; for they send to Jerusalem the ancient names of their parents in writing, as well as those of their remoter ancestors, and signify who are the witnesses also. But if any war falls out, such as have fallen out a great many of them already, when Antiochus Epiphanes made an invasion upon our country, as also when Pompey the Great and Quintilius Varus did so also, and principally in the wars that have happened in our own times, those priests that survive them compose new tables of genealogy out of the old records, and examine the circumstances of the women that remain; for still they do not admit of those that have been captives, as suspecting that they had conversation with some foreigners. But what is the strongest argument of our exact management in this matter is what I am now going to say, that we have the names of our high priests from father to son set down in our records for the interval of two thousand years; and if any of these have been transgressors of these rules, they are prohibited to present themselves at the altar, or to be partakers of any other of our purifications; and this is justly, or rather necessarily done, because every one is not permitted of his own accord to be a writer, nor is there any disagreement in what is written; they being only prophets that have written the original and earliest accounts of things as they learned them of God himself by inspiration; and others have written what hath happened in their own times, and that in a very distinct manner also.
(7) Of this accuracy of the Jews before and in our Savior's time, in carefully preserving their genealogies all along, particularly those of the priests, see Josephus's Life, sect. 1. This accuracy. seems to have ended at the destruction of Jerusalem by Titus, or, however, at that by Adrian.